CN116585985A - Rotary oxalic acid powder feeding system and method based on improvement of catalytic conveying precision - Google Patents
Rotary oxalic acid powder feeding system and method based on improvement of catalytic conveying precision Download PDFInfo
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- CN116585985A CN116585985A CN202310295056.3A CN202310295056A CN116585985A CN 116585985 A CN116585985 A CN 116585985A CN 202310295056 A CN202310295056 A CN 202310295056A CN 116585985 A CN116585985 A CN 116585985A
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- oxalic acid
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- stirring
- inner cavity
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- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Natural products OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 title claims abstract description 466
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000006872 improvement Effects 0.000 title claims description 10
- 235000006408 oxalic acid Nutrition 0.000 claims abstract description 133
- 238000005238 degreasing Methods 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 53
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000007664 blowing Methods 0.000 claims description 12
- 239000000443 aerosol Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000002253 acid Substances 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000005336 cracking Methods 0.000 abstract description 4
- 210000001161 mammalian embryo Anatomy 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 239000000843 powder Substances 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
- B01F27/921—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with helices centrally mounted in the receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/96—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with openwork frames or cages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
- B01J4/007—Feed or outlet devices as such, e.g. feeding tubes provided with moving parts
Abstract
The invention discloses a rotary oxalic acid powder feeding system and method based on improving catalytic conveying precision, comprising the following steps: an oxalic acid hopper structure provided with an oxalic acid discharge port; the oxalic acid feeding pump body is fixedly connected with the oxalic acid hopper structure, a pump body feeding channel is formed in the oxalic acid feeding pump body, and the inlet end of the pump body feeding channel is communicated with the oxalic acid discharging port; the quantitative feeding rotating shaft is assembled in the pump body feeding channel in a switching way, and the outer wall of the quantitative feeding rotating shaft is matched with the inner wall of the pump body feeding channel; an oxalic acid quantitative groove is formed in the quantitative feeding rotating shaft corresponding to one side wall of the pump body feeding channel; the output end of the normal temperature gas inlet spraying group extends to the inside of the pump body feeding channel, and the output end of the normal temperature gas inlet spraying group corresponds to the space between the quantitative feeding rotating shaft and the outlet end of the pump body feeding channel. Solves the technical problems of easy cracking of embryo and unqualified degreasing rate caused by low acid feeding stability and accuracy of oxalic acid catalytic degreasing process in the prior art.
Description
Technical Field
The invention relates to the technical field of material conveying systems, in particular to a rotary oxalic acid powder feeding system and method based on improving catalytic conveying precision.
Background
Currently, with the development and application of MIM metal injection molding technology, different types of binder systems and degreasing methods are developed, wherein catalytic degreasing is the latest and most advanced degreasing method and is widely used. However, the problems and challenges faced in the practical application process are still very serious, wherein the most serious and direct influence is the cracking problem of the blank in the degreasing process, and many factors of the blank cracking caused by the prior art, such as furnace chamber process temperature, acidity of acid for catalytic reaction, acid feeding stability, furnace chamber vibration, uniformity of gas flow velocity in the furnace chamber, workpiece printing mode and architecture, and the like, exist.
Among the above-mentioned various influencing factors, the most common factor is acid feeding stability, i.e. feeding stability of solid oxalic acid powder, and because the solid oxalic acid powder has certain fluidity, although a specific mechanical structure can realize powder conveying, the precision control on powder conveying is difficult to reach the precision standard requirement, and thus the problems of cracking of embryo parts, non-standard degreasing rate and the like caused by the fact are plagued by the development of industry.
Disclosure of Invention
Therefore, the invention provides a rotary oxalic acid powder feeding system and method based on improving catalytic conveying precision, which are used for solving the technical problems that in the prior art, the acid feeding stability and precision of an oxalic acid catalytic degreasing process are not high, and a blank is easy to crack and the degreasing rate is not up to standard.
In order to achieve the above object, the present invention provides the following technical solutions:
a rotary oxalic acid powder feed system based on improving catalytic delivery accuracy, comprising:
the oxalic acid hopper structure is provided with a hopper inner cavity, and an oxalic acid feeding inlet and an oxalic acid discharging outlet which are respectively communicated with the hopper inner cavity;
the oxalic acid feeding pump body is fixedly connected with the oxalic acid hopper structure, a pump body feeding channel is formed in the oxalic acid feeding pump body, and the inlet end of the pump body feeding channel is communicated with the oxalic acid discharge port of the oxalic acid hopper structure;
the quantitative feeding rotating shaft is vertically and transitionally assembled in the pump body feeding channel, and the outer wall of the quantitative feeding rotating shaft is matched with the inner wall of the pump body feeding channel; an oxalic acid quantitative groove is formed in the quantitative feeding rotating shaft corresponding to one side wall of the pump body feeding channel;
the output end of the feeding stepping motor is in transmission assembly connection with the quantitative feeding rotating shaft;
the output end of the normal temperature gas inlet spraying group extends to the inside of the pump body feeding channel, and the output end of the normal temperature gas inlet spraying group is correspondingly positioned between the oxalic acid quantitative groove position of the quantitative feeding rotating shaft and the outlet end of the pump body feeding channel.
On the basis of the technical scheme, the invention is further described as follows:
as a further aspect of the present invention, the method further comprises:
the stirring brushless motor is fixedly connected and assembled at the top end of the oxalic acid hopper structure, and the output end of the stirring brushless motor is fixedly connected and assembled with a transmission shaft extending to the inside of the oxalic acid hopper structure through a coupler; oxalic acid stirring blades are fixedly connected to the outer wall of one side of the transmission shaft, which is close to the stirring brushless motor;
the hopper inner cavity comprises a cylindrical inner cavity;
the oxalic acid stirring blades are correspondingly positioned in the cylindrical inner cavity.
As a further scheme of the invention, a spiral lifting sheet is fixedly connected on the outer wall of one side of the transmission shaft far away from the stirring brushless motor;
the hopper inner cavity also comprises an inverted cone inner cavity;
the inverted cone-shaped inner cavity is positioned at the lower part of the cylindrical inner cavity, and the spiral lifting piece is correspondingly positioned in the inverted cone-shaped inner cavity.
As a further aspect of the present invention, the method further comprises:
and the vibration motor is fixedly assembled and connected with the oxalic acid hopper structure, and corresponds to the outer side wall of the inverted cone-shaped inner cavity.
As a further scheme of the invention, the oxalic acid feeding pump body is fixedly connected with the outlet end of the inverted cone-shaped inner cavity corresponding to the oxalic acid hopper structure through a pipeline, and the inlet end of the feeding channel of the pump body is communicated with the outlet end of the inverted cone-shaped inner cavity through the pipeline inner cavity.
As a further scheme of the invention, one end of the transmission shaft far away from the stirring brushless motor is fixedly connected with a stirring eccentric shaft extending into the pipeline, the stirring eccentric shaft and the transmission shaft are arranged in a same-direction extending manner, and the stirring eccentric shaft is positioned at the center of the transmission shaft and offset by one side part.
As a further scheme of the invention, the outer diameter of the quantitative feeding rotating shaft is larger than the distance between two side walls of the feeding channel of the pump body.
As a further aspect of the present invention, the method further comprises:
the volatilization heating component is respectively connected with an oxalic acid reaction inlet and a volatilization gas outlet; the oxalic acid reaction inlet is communicated with the outlet end of the pump body feeding channel.
The rotary oxalic acid powder feeding method based on the catalytic conveying precision improvement is applied to the rotary oxalic acid powder feeding system based on the catalytic conveying precision improvement, and specifically comprises the following steps:
through the pump body feed channel whereabouts to the oxalic acid ration groove that corresponds the ration feed pivot of oxalic acid feed pump body, by the synchronous rotation of feeding step motor control drive ration feed pivot and oxalic acid ration groove, oxalic acid ration groove that contains oxalic acid powder is from the entry end of orientation pump body feed channel through the inner wall scraping of pump body feed channel after further turning to the exit end of orientation pump body feed channel, at this moment along with the high-speed air current of constant temperature gas entry jetting group blowout, blow off oxalic acid powder inside the oxalic acid ration groove, the oxalic acid powder after blowing off is along with blowing in the gas formation aerosol state and is further blown to volatilize in the heating element.
As a further scheme of the invention, the method further comprises the following steps:
adding oxalic acid powder into an oxalic acid hopper structure through an oxalic acid feeding inlet, driving an oxalic acid stirring blade to break oxalic acid caking through a stirring brushless motor, and further lifting and stirring the broken oxalic acid powder through a spiral lifting sheet and a stirring eccentric shaft, wherein the oxalic acid powder after lifting and stirring enters an oxalic acid feeding pump body;
after the aerosol-state oxalic acid powder is blown into the volatilization heating component, the oxalic acid volatilizes from a solid state to be sublimated into a gas state along with the stable rise of the temperature in the volatilization heating component, and is further conveyed into the degreasing furnace cavity through a volatilization gas outlet of the volatilization heating component.
The invention has the following beneficial effects:
according to the system, the oxalic acid stirring blade can be effectively driven by the stirring brushless motor and matched with the vibration motor to break up oxalic acid powder caking, so that oxalic acid is prevented from accumulating in a conical area at the bottom of an oxalic acid hopper structure to influence oxalic acid blanking; meanwhile, the feeding stepping motor is used for driving the quantitative feeding rotating shaft to effectively form accurate quantitative transportation of the flowable oxalic acid powder in the oxalic acid feeding pump body, so that the accurate stability of acid feeding is improved; in addition, can be in the effect of effectively blowing off the accurate ration transportation in-process adhesion oxalic acid powder with the help of the normal temperature gas entry group of spouting, further promote and transport on the basis of accurate stability, still usable blowing in gas and oxalic acid powder combine together to form the aerosol, utilize the aerosol state to get into and volatilize heating element and more help follow-up oxalic acid to volatilize to accessible normal atmospheric temperature gas of blowing in will be cooled down oxalic acid feed pump body and ration feeding pivot, with this effect that reaches protection pump body and oxalic acid state, effectively realize accurately, steadily to the feeding oxalic acid powder in the evaporation heating element.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will simply refer to the drawings required in the embodiments or the description of the prior art, and structures, proportions, sizes and the like which are shown in the specification are merely used in conjunction with the disclosure of the present invention, so that those skilled in the art can understand and read the disclosure, and any structural modifications, changes in proportion or adjustment of sizes should still fall within the scope of the disclosure of the present invention without affecting the effects and the achieved objects of the present invention.
Fig. 1 is a schematic diagram of the overall external structure of a rotary oxalic acid powder feeding system based on improving catalytic conveying precision according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a cross-sectional structure of a rotary oxalic acid powder feeding system at C-C' in fig. 1 based on improving catalytic conveying precision according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of an assembly structure of an oxalic acid feeding pump body and a quantitative feeding rotating shaft in a rotary oxalic acid powder feeding system based on improving catalytic conveying precision according to an embodiment of the invention.
In the drawings, the list of components represented by the various numbers is as follows:
oxalic acid hopper structure 1, oxalic acid feed inlet 11;
a stirring brushless motor 2, a spiral lifting piece 21 and a stirring eccentric shaft 22;
oxalic acid stirring blades 3; a vibration motor 4;
oxalic acid feed pump body 5, pump body feed channel 51;
a quantitative feed shaft 6 and an oxalic acid quantitative tank 61;
a feeding stepping motor 7; a normal temperature gas inlet spray group 8;
a volatilization heating component 9, an oxalic acid reaction inlet 91 and a volatile gas outlet 92.
Detailed Description
Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms such as "upper", "lower", "left", "right", "middle" and the like are also used herein for descriptive purposes only and are not intended to limit the scope of the invention for which the invention may be practiced or for which the relative relationship may be altered or modified without materially altering the technical context.
As shown in fig. 1 to 3, the embodiment of the invention provides a rotary oxalic acid powder feeding system based on improving catalytic conveying precision, which comprises an oxalic acid hopper structure 1, a stirring brushless motor 2, oxalic acid stirring blades 3, a vibration motor 4, an oxalic acid feeding pump body 5, a quantitative feeding rotating shaft 6, a feeding stepping motor 7, a normal-temperature air inlet spray group 8 and a volatilization heating component 9, wherein the oxalic acid powder feeding system is used for effectively driving the oxalic acid stirring blades 3 through the stirring brushless motor 2 and scattering oxalic acid powder caking by matching with the vibration motor 4 so as to prevent oxalic acid from accumulating in a conical area at the bottom of the oxalic acid hopper structure 1 to influence oxalic acid blanking; meanwhile, the feeding stepping motor 7 is used for driving the quantitative feeding rotating shaft 6 to effectively form accurate quantitative transportation of the flowable oxalic acid powder in the oxalic acid feeding pump body 5, so that the accurate stability of acid feeding is improved; in addition, can be in the effect of blowing off the accurate ration transportation in-process adhesion oxalic acid powder with the help of normal atmospheric temperature gas entry group 8, further promote on transporting accurate stability's basis, still available blowing in gas and oxalic acid powder combine together to form the aerosol, it volatilizees to get into heating element 9 more to help follow-up oxalic acid to volatilize to accessible normal atmospheric temperature gas of blowing in will be to oxalic acid feeding pump body 5 and ration feeding pivot 6 cooling, thereby reach the effect of protection pump body and oxalic acid state, effectively realize accurately, steadily to the feeding oxalic acid powder in the evaporation heating element 9, functional practicality has been promoted. The specific arrangement is as follows:
referring to fig. 1 to 2, the oxalic acid hopper structure 1 is respectively provided with a hopper inner cavity and an oxalic acid feeding inlet 11 communicated with the hopper inner cavity, and is used for periodically adding oxalic acid powder into the hopper inner cavity of the oxalic acid hopper structure 1 through the oxalic acid feeding inlet 11; the hopper inner cavity comprises a cylindrical inner cavity and an inverted cone inner cavity which are communicated, and the cylindrical inner cavity is positioned at the upper part of the inverted cone inner cavity.
The basic end of the stirring brushless motor 2 is fixedly connected and assembled at the top end of the oxalic acid hopper structure 1, and the output end of the stirring brushless motor 2 is fixedly connected and assembled with a transmission shaft extending to the inside of the oxalic acid hopper structure 1 through a coupler; the oxalic acid stirring blade 3 is fixedly connected to the outer wall of one side of the transmission shaft, which is close to the stirring brushless motor 2, so that caking of oxalic acid powder is effectively broken up through the oxalic acid stirring blade 3, and the influence of excessive accumulation of the caked oxalic acid on the inverted cone inner cavity at the lower part of the oxalic acid hopper structure 1 on the further blanking of oxalic acid is avoided; the transmission shaft is keeping away from the outer wall rigid coupling of one side of stirring brushless motor 2 has spiral lifting piece 21 for will pile up the reciprocal upwards drive of oxalic acid powder in the back taper inner chamber of oxalic acid hopper structure 1 lower part through spiral lifting piece 21, and then make oxalic acid powder at the inside reciprocal circulation of back taper inner chamber, promote the degree of consistency.
Preferably, the oxalic acid hopper structure 1 is fixedly connected with a vibration motor 4 corresponding to the outer side wall of the inverted cone-shaped inner cavity, so that the uniformity of oxalic acid powder in the inverted cone-shaped inner cavity is further effectively improved by means of the vibration motor 4, powder caking is reduced, and blocking caused by powder accumulation to the outlet end of the inverted cone-shaped inner cavity is avoided.
Referring to fig. 1 to 3, the oxalic acid feeding pump body 5 is fixedly connected with the outlet end of the oxalic acid hopper structure 1 corresponding to the inverted cone-shaped inner cavity through a pipeline, a pump feeding channel 51 is formed in the oxalic acid feeding pump body 5, and one end of the pump feeding channel 51 is connected with the outlet end of the inverted cone-shaped inner cavity through the pipeline inner cavity in a communicated manner so as to uniformly transfer oxalic acid powder to the oxalic acid feeding pump body 5.
Preferably, the end of the transmission shaft far away from the stirring brushless motor 2 is fixedly connected with a stirring eccentric shaft 22 extending into the pipeline, the stirring eccentric shaft 22 and the transmission shaft extend in the same direction, and the stirring eccentric shaft 22 is positioned on one side of the center offset of the transmission shaft, so as to synchronously avoid blockage caused by powder accumulation to an inlet pipeline of the oxalic acid feeding pump body 5 by means of the rotation function of the transmission shaft.
The quantitative feeding rotating shaft 6 is vertically and transitionally assembled in the pump body feeding channel 51, and the outer wall of the quantitative feeding rotating shaft 6 is matched with the inner wall of the pump body feeding channel 51, so as to effectively form a partition effect on the pump body feeding channel 51 by means of the quantitative feeding rotating shaft 6; the oxalic acid quantitative groove 61 is formed in a side wall of the pump body feeding channel 51 corresponding to the quantitative feeding rotating shaft 6, and is used for synchronously rotating with the quantitative feeding rotating shaft 6 through the oxalic acid quantitative groove 61 on the basis of the partition effect formed by the quantitative feeding rotating shaft 6, so that the oxalic acid quantitative groove 61 containing oxalic acid powder can be further turned to the outlet end of the pump body feeding channel 51 after being scraped from the inlet end of the pump body feeding channel 51 through the inner wall of the pump body feeding channel 51, and the oxalic acid quantitative groove 61 is used as an accurate quantitative transfer accommodating groove for the oxalic acid powder.
Preferably, the outer diameter of the quantitative feeding shaft 6 is larger than the distance between the two side walls of the feeding channel 51 of the pump body, so as to effectively improve the stability of the partition effect formed by the quantitative feeding shaft 6.
With continued reference to fig. 1 to 2, the output shaft of the feeding stepper motor 7 is fixedly connected with the quantitative feeding rotating shaft 6 in a transmission manner, so as to realize automatic control of the quantitative feeding rotating shaft 6.
The input end of the normal temperature gas inlet spraying group 8 is connected with gas generating equipment, gas is generated by the gas generating equipment and is transmitted to the normal temperature gas inlet spraying group 8, the output end of the normal temperature gas inlet spraying group 8 extends to the inside of the pump body feeding channel 51, and the output end of the normal temperature gas inlet spraying group 8 is correspondingly positioned between the oxalic acid quantitative groove 61 of the quantitative feeding rotating shaft 6 and the outlet end of the pump body feeding channel 51, so that the oxalic acid powder adhered in the accurate quantitative transferring process can be effectively blown off by the normal temperature gas inlet spraying group 8, the transferring accuracy and stability are further improved, meanwhile, on the basis of the functions, the blown-in gas and the oxalic acid powder are combined to form aerosol, the aerosol state is utilized to enter the volatilization heating assembly 9 to further facilitate the volatilization of subsequent oxalic acid, and the normal temperature gas blown in through the normal temperature gas cools the oxalic acid feeding pump body 5 and the quantitative feeding rotating shaft 6, so that the function of protecting the pump body and the oxalic acid state is achieved, and the functional practicability is improved.
The volatilization heating component 9 is respectively communicated with an oxalic acid reaction inlet 91 and a volatilization gas outlet 92; the oxalic acid reaction inlet 91 is connected with the outlet end of the pump body feeding channel 51, so as to realize the predetermined volatilization heating function of the aerosol oxalic acid powder in the early stage of catalytic degreasing.
The embodiment of the invention also provides a rotary oxalic acid powder feeding method based on improving the catalytic conveying precision, which comprises the following steps:
the oxalic acid powder is added into the oxalic acid hopper structure 1 through the oxalic acid feeding inlet 11, the oxalic acid stirring blade 3 is driven by the stirring brushless motor 2 to break up oxalic acid agglomerations, the broken oxalic acid powder is further stirred by the lifting of the spiral lifting sheet 21 and the stirring eccentric shaft 22, and falls into the oxalic acid quantitative groove 61 corresponding to the quantitative feeding rotating shaft 6 through the pump body feeding channel 51 of the oxalic acid feeding pump body 5, further the quantitative feeding rotating shaft 6 and the oxalic acid quantitative groove 61 are controlled and driven by the feeding stepping motor 7 to synchronously rotate, the oxalic acid quantitative groove 61 containing the oxalic acid powder is further turned from the inlet end of the pump body feeding channel 51 to the outlet end of the pump body feeding channel 51 after passing through the inner wall of the pump body feeding channel 51, at the moment, along with the blowing of the normal temperature air inlet jet group 8, the oxalic acid powder in the oxalic acid quantitative groove 61 is blown down, the blown down oxalic acid powder is further blown into the volatilization heating assembly 9 along with blowing of the air, along with the stable rising of the internal temperature of the volatilization heating assembly 9, the oxalic acid volatilizes from the solid state into the gas state, and is further conveyed into the degreasing chamber through the volatilization air outlet 92 of the volatilization assembly 9.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (10)
1. Rotation type oxalic acid powder feed system based on promote catalytic delivery precision, characterized by, include:
the oxalic acid hopper structure is provided with a hopper inner cavity, and an oxalic acid feeding inlet and an oxalic acid discharging outlet which are respectively communicated with the hopper inner cavity;
the oxalic acid feeding pump body is fixedly connected with the oxalic acid hopper structure, a pump body feeding channel is formed in the oxalic acid feeding pump body, and the inlet end of the pump body feeding channel is communicated with the oxalic acid discharge port of the oxalic acid hopper structure;
the quantitative feeding rotating shaft is vertically and transitionally assembled in the pump body feeding channel, and the outer wall of the quantitative feeding rotating shaft is matched with the inner wall of the pump body feeding channel; an oxalic acid quantitative groove is formed in the quantitative feeding rotating shaft corresponding to one side wall of the pump body feeding channel;
the output end of the feeding stepping motor is in transmission assembly connection with the quantitative feeding rotating shaft;
the output end of the normal temperature gas inlet spraying group extends to the inside of the pump body feeding channel, and the output end of the normal temperature gas inlet spraying group is correspondingly positioned between the oxalic acid quantitative groove position of the quantitative feeding rotating shaft and the outlet end of the pump body feeding channel.
2. The rotary oxalic acid powder feeding system based on improving the catalytic conveying precision according to claim 1, further comprising:
the stirring brushless motor is fixedly connected and assembled at the top end of the oxalic acid hopper structure, and the output end of the stirring brushless motor is fixedly connected and assembled with a transmission shaft extending to the inside of the oxalic acid hopper structure through a coupler; oxalic acid stirring blades are fixedly connected to the outer wall of one side of the transmission shaft, which is close to the stirring brushless motor;
the hopper inner cavity comprises a cylindrical inner cavity;
the oxalic acid stirring blades are correspondingly positioned in the cylindrical inner cavity.
3. The rotary oxalic acid powder feeding system based on the improvement of the catalytic conveying precision according to claim 2, wherein,
the outer wall of one side of the transmission shaft far away from the stirring brushless motor is fixedly connected with a spiral lifting sheet;
the hopper inner cavity also comprises an inverted cone inner cavity;
the inverted cone-shaped inner cavity is positioned at the lower part of the cylindrical inner cavity, and the spiral lifting piece is correspondingly positioned in the inverted cone-shaped inner cavity.
4. The rotary oxalic acid powder feeding system based on improving the catalytic conveying precision according to claim 3, further comprising:
and the vibration motor is fixedly assembled and connected with the oxalic acid hopper structure, and corresponds to the outer side wall of the inverted cone-shaped inner cavity.
5. The rotary oxalic acid powder feeding system based on the improvement of the catalytic conveying precision according to claim 3, wherein,
the oxalic acid feeding pump body is fixedly connected with the outlet end of the oxalic acid hopper structure corresponding to the inverted cone-shaped inner cavity through a pipeline, and the inlet end of the feeding channel of the pump body is communicated with the outlet end of the inverted cone-shaped inner cavity through the pipeline inner cavity.
6. The rotary oxalic acid powder feeding system based on the improvement of the catalytic conveying precision according to claim 5, wherein,
the stirring device is characterized in that one end of the transmission shaft, which is far away from the stirring brushless motor, is fixedly connected with a stirring eccentric shaft which extends into the pipeline, the stirring eccentric shaft and the transmission shaft extend in the same direction, and the stirring eccentric shaft is positioned at the center of the transmission shaft and deviates from the side part.
7. The rotary oxalic acid powder feeding system based on the improvement of the catalytic conveying precision according to claim 1, wherein,
the external diameter of the quantitative feeding rotating shaft is larger than the distance between two side walls of the feeding channel of the pump body.
8. The rotary oxalic acid powder feeding system based on improving the catalytic conveying precision according to claim 1, further comprising:
the volatilization heating component is respectively connected with an oxalic acid reaction inlet and a volatilization gas outlet; the oxalic acid reaction inlet is communicated with the outlet end of the pump body feeding channel.
9. A rotary oxalic acid powder feeding method based on improving catalytic conveying precision, which is characterized by applying the rotary oxalic acid powder feeding system based on improving catalytic conveying precision as claimed in any one of claims 1-8, and specifically comprising the following steps:
through the pump body feed channel whereabouts to the oxalic acid ration groove that corresponds the ration feed pivot of oxalic acid feed pump body, by the synchronous rotation of feeding step motor control drive ration feed pivot and oxalic acid ration groove, oxalic acid ration groove that contains oxalic acid powder is from the entry end of orientation pump body feed channel through the inner wall scraping of pump body feed channel after further turning to the exit end of orientation pump body feed channel, at this moment along with the high-speed air current of constant temperature gas entry jetting group blowout, blow off oxalic acid powder inside the oxalic acid ration groove, the oxalic acid powder after blowing off is along with blowing in the gas formation aerosol state and is further blown to volatilize in the heating element.
10. The rotary oxalic acid powder feeding method based on improving the catalytic conveying precision according to claim 9, further comprising the steps of:
adding oxalic acid powder into an oxalic acid hopper structure through an oxalic acid feeding inlet, driving an oxalic acid stirring blade to break oxalic acid caking through a stirring brushless motor, and further lifting and stirring the broken oxalic acid powder through a spiral lifting sheet and a stirring eccentric shaft, wherein the oxalic acid powder after lifting and stirring enters an oxalic acid feeding pump body;
after the aerosol-state oxalic acid powder is blown into the volatilization heating component, the oxalic acid volatilizes from a solid state to be sublimated into a gas state along with the stable rise of the temperature in the volatilization heating component, and is further conveyed into the degreasing furnace cavity through a volatilization gas outlet of the volatilization heating component.
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